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10 Benzene pipe repair
A leakage occurred at a carbon steel pipe
carrying benzene at a refinery in the Netherlands
during Christmas (25.12.). The benzene squirted
out of a 10 Ø carbon steel pipe from a hole of
the size of 1 mm Ø with a pressure of more than
10 bar close ( 20 mm) to the pipe-support.
Pipe-support on sleeper
(No pictures of squirting leak for safety reasons)
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10 Benzene pipe repair
All following procedures have been carried out
after the shut down of the facility (that means
no pressure in the pipe system). The leak was
first closed with a piece of Viton rubber glued
on a 100 x 100 x 2 mm steel plate, generously
filled with MM-metal oL-steelceramic Hardener
red, positioned over the hole and fixed with a
Bandit strap...
Cured volcano shaped ridge to create a seating
for the viton
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10 Benzene pipe repair
...and generously covered with a thick layer of
MM-metal oL-steelceramic but now mixed with
Hardener yellow.
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10 Benzene pipe repair
During the Christmas holydays the pipe was put
back into service, while a reinforcement box
(called mini box) was pre-fabricated at EMHAs
workshop.
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10 Benzene pipe repair
On the 4th of January the mini box was mounted
over the small plate and fixed with Bandits to
the pipe and its support.
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10 Benzene pipe repair
All seams were closed with MM-metal SS-steel
Hardener red for a fast cure. Between pipe and
mini box a closed cell neoprene rubber foam was
glued.
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10 Benzene pipe repair
After curing the box was injected with MM-metal
SS-steel Hardener yellow for a more gentle cure
and twice the strength. For injection the liquid
version of this PolymerMetal is used.
deaeration port
deaeration port
port of injection
spare port
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Technical Data Sheet MM-metal oL-steelceramic
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MM-metal oL-steelceramic
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Technical Data Sheet MM-metal SS-steel
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PolymerMetall made by MultiMetall

• MultiMetall Germany invests for more than 40
  years in polymer-metallic material technologies
  for the maintenance of metals and alloys. In
  plants and constructions often functional
  particularly important components are exposed to
  stresses like break, tear, corrosion, cavitation,
  chemical or thermal demands.

Components treated with PolymerMetals can be
preventatively protected against above mentioned
stresses. Furthermore MultiMetalls cold repair
technology facilitates a gentle material
treatment and a durable repair of damaged parts.
MultiMetallthe MetalExistenceCompany
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MultiMetall Internet

• Please feel free to visit our website! At
  www.polymermetal.com detailed information on our
  products and their usage can be found.
• Here are some screenshots of our website

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Essential parts of this publication are based on
the presentation and information, kindly provided
by EMHA technisch bureau b.v.. EMHA technisch
bureau b.v. is our exclusive partner in the
Netherlands, who successfully carries out repairs
by using our PolymerMetals for many years.
PolymerMetall MultiMetall Ceramium
Molymetall Sealium XETEX
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